Leftovers Christmas pudding? Make Christmas pudding rolls! Simply roll out a pack of shop-bought puff pastry, cover it with chunks of leftover Christmas pudding, then roll up and chop into equal sections. Pop into a 200C/400F/Gas 6 oven for around 20 minutes, or until crispy. You can also mix crumbled Christmas pudding into ice cream for an easy dessert to spend the day in front of the television.